Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5362994 | Applied Surface Science | 2008 | 7 Pages |
Abstract
CVD polycrystalline diamond film, pulse laser-deposited (PLD) carbon film and highly oriented pirolitical graphite (HOPG) as reference, were modified by means of Ar+ ion bombardment and characterized by means of Raman scattering, transmission electron microscopy, electron-diffraction (TEM), reflected electron energy loss specroscopy (REELS) and X-ray photoelectron spectroscopy (XPS) techniques. It was found that the diamond was transferred to a carbon with halo-like morphology and disordered stack of graphene segments. Instead of the well-known electron energy loss peak of graphite at 6.5Â eV, a new REELS peak appeared at 4-5Â eV energies. The observed effect was explained by the modification of Ï-system in carbon films as a consequence of the formation of non-planar, nanometer-sized graphitic planes.
Keywords
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Chemistry
Physical and Theoretical Chemistry
Authors
G. Kovach, A. Karacs, G. Radnoczi, H. Csorbai, L. Guczi, M. Veres, M. Koos, L. Papadimitriou, A. Sólyom, G. PetÅ,